Home / 1,287,855.48-1,777,151.64-714,850.54

Finding the Fourth Proportional to 1,287,855.48, 1,777,151.64 and 714,850.54

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Solution

The fourth proportional to 1,287,855.48, 1,777,151.64 and 714,850.54 is: 986,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,855.48 : 1,777,151.64 = 714,850.54 : x
  2. Step 2: Convert to fraction form
    1,287,855.48/1,777,151.64 = 714,850.54/x
  3. Step 3: Cross multiply
    1,287,855.48x = 1,777,151.64 × 714,850.54
  4. Step 4: Simplify right side
    1,287,855.48x = 1,270,397,809,515.89
  5. Step 5: Solve for x
    x = 1,270,397,809,515.89/1,287,855.48
  6. Step 6: Final answer
    x = 986,444.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.